Finding the Fourth Proportional to 2,179.29, 3,269.22 and 946.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,179.29 : 3,269.22 = 946.69 : x
2. Step 2: Convert to fraction form
   2,179.29/3,269.22 = 946.69/x
3. Step 3: Cross multiply
   2,179.29x = 3,269.22 × 946.69
4. Step 4: Simplify right side
   2,179.29x = 3,094,937.88
5. Step 5: Solve for x
   x = 3,094,937.88/2,179.29
6. Step 6: Final answer
   x = 1,420.16